Flaky test in the CI

[rodrigo-o]

We have a flaky test in the CI related to a - operation that recieves nil some of the times.

Error: 18:16:46.021 [error] GenServer LambdaEthereumConsensus.Libp2pPort terminating
** (ArithmeticError) bad argument in arithmetic expression
    (erts 14.2) :erlang.-(nil, 1743531405)
    lib/lambda_ethereum_consensus/fork_choice/fork_choice.ex:323: Patch.Mock.Original.For.LambdaEthereumConsensus.ForkChoice.compute_current_slot/2
    (patch 0.15.0) lib/patch/mock/server.ex:99: Patch.Mock.Server.delegate/3
    (lambda_ethereum_consensus 0.1.0) lib/lambda_ethereum_consensus/fork_choice/handlers.ex:43: LambdaEthereumConsensus.ForkChoice.Handlers.on_tick/2
    lib/lambda_ethereum_consensus/fork_choice/fork_choice.ex:116: Patch.Mock.Original.For.LambdaEthereumConsensus.ForkChoice.on_tick/2
    (patch 0.15.0) lib/patch/mock/server.ex:99: Patch.Mock.Server.delegate/3
    (lambda_ethereum_consensus 0.1.0) lib/libp2p_port.ex:819: LambdaEthereumConsensus.Libp2pPort.on_tick/2
    (lambda_ethereum_consensus 0.1.0) lib/libp2p_port.ex:527: LambdaEthereumConsensus.Libp2pPort.handle_info/2
    (stdlib 5.2) gen_server.erl:1095: :gen_server.try_handle_info/3
    (stdlib 5.2) gen_server.erl:1183: :gen_server.handle_msg/6
    (stdlib 5.2) proc_lib.erl:241: :proc_lib.init_p_do_apply/3
Last message: :on_tick

Here is an example run: https://github.com/lambdaclass/lambda_ethereum_consensus/actions/runs/14202677885/attempts/2

[rodrigo-o]

This didn't happened for quite a while. I'm going to close it and monitor if it happens again to repon the issue.